* T mlist4suntong@yahoo.com [20061007 23:46]:

I'm sure most of you have seen it before, but any of you know how to fix it? Ie, the following error when playing movies with mplayer:

Linux RTC init error in ioctl (rtc_irqp_set 1024): Inappropriate ioctl for device Try adding "echo 1024 > /proc/sys/dev/rtc/max-user-freq" to your system startup scripts.

Problem of following "echo" command is, I just did, and still get the error.

$ cat /proc/sys/dev/rtc/max-user-freq 1024

Any comment?

This is due to use of High Precision Event Timer on grml, the future replacement for the RTC periodic timer functionality¹.

Quoting http://www.mplayerhq.hu/DOCS/man/en/mplayer.1.html:

,---- | -rtc (RTC only) | | Useless with modern Linux kernels configured for desktop use as they | already wake up the process with similar accuracy when using normal | timed sleep. `----

So as far as I understand you don't need the rtc-mechanism in mplayer nowadays. Check whether mplayer's option -nortc changes anything for you, but AFAICS just ignoring the rtc_irqp_set-message should work as well. ;)

¹ http://en.wikipedia.org/wiki/High_Precision_Event_Timer http://www.intel.com/hardwaredesign/hpetspec.htm

regards, -mika-